Diagnosis of bacterial endocarditis caused by Streptococcus lactis and assisted by immunoblotting of serum antibodies

Mannion, P.T.; Rothburn, M.M.

doi:10.1016/0163-4453(90)94149-t

Cited by 55 publications

(35 citation statements)

References 2 publications

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“…In some cases, the ingestion of unpasteurized milk, sour cream, or yogurt was recognized [5,6,9,[11][12][13]. Our patient and other previously reported cases [2,3,10,14], however, had no history of ingestion of unpasteurized milk, sour cream, nor yogurt. Similarly, the route of L. lactis infection is not well demonstrated.…”

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confidence: 47%

“…In addition, intravenous drug use and nosocomial blood stream infection may predispose to bacterial endocarditis. Interestingly, among the six case reports of L. lactis-related endocarditis patients with thorough description regarding medical history [10][11][12][13][14][15], we found that only two cases had history of valvular heart disease: rheumatic mitral valve disease [14] and severe mitral regurgitation due to left atrial myxoma [15], respectively. The others and our case had no underlying heart disease.…”

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confidence: 95%

“…Regardless of endocarditis or other infections, response to these variant antimicrobial regimens seems good. No mortality or major disability resulted from the event of endocarditis [10][11][12][13][14][15], even if a relatively short, such as 22-day, duration of antimicrobial treatment was applied [13]. Even immunocompromised patients recovered without evidence of recurrence [5,7].…”

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confidence: 95%

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Infective Endocarditis Complicated by Intracerebral Hemorrhage due to Lactococcus lactis subsp. cremoris

Lin

Chen

et al. 2010

Infection

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confidence: 47%

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confidence: 95%

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confidence: 95%

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Infective Endocarditis Complicated by Intracerebral Hemorrhage due to Lactococcus lactis subsp. cremoris

Lin

Chen

et al. 2010

Infection

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“…Members of the genus have been isolated largely from food-related sources and are generally regarded as safe (GRAS) organisms (Salminen et al, 1998). However, rare cases of invasive disease in humans, sometimes severe, have been reported in association with L. garvieae (Vinh et al, 2006;Wang et al, 2007; Yiu et al, 2007) and L. lactis (Mannion & Rothburn, 1990) infections. The case study by Wang et al (2007) raised awareness of a potential risk factor for gastrointestinal disease from L. garvieae linked to the consumption of raw seafood (squid) in the summer months, although their 16S rRNA gene sequence analysis may not have been the best method of establishing an epidemiological link.…”

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confidence: 99%

Lactococcus chungangensis sp. nov., a lactic acid bacterium isolated from activated sludge foam

Cho

Nam

Yoon

et al. 2008

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLO

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The taxonomic position of a Gram-positive coccus, designated strain CAU 28 T , isolated from activated sludge foam was determined by using a polyphasic approach. Based on its cellular morphology and the results of biochemical tests, strain CAU 28 T was identified tentatively as a member of the genus Lactococcus. Comparative 16S rRNA gene sequence analysis showed that levels of similarity between strain CAU 28 T and the type strains of recognized Lactococcus species ranged from 90.4 to 97.2 %. DNA-DNA hybridization studies showed that strain CAU 28 T displayed less than 26.1 % relatedness to the type strains of recognized Lactococcus species. The rep-PCR fingerprints revealed that strain CAU 28 T was well separated from reference Lactococcus species. The combined genotypic and phenotypic data indicate that strain CAU 28 T represents a novel species of the genus Lactococcus, for which the name Lactococcus chungangensis sp. nov. is proposed. The type strain is CAU 28 T (5KCTC 13185 T 5CCUG 55099 T ).Lactococcus Schleifer et al. 1986 was first established as a separate genus distinct from the genus Streptococcus by Schleifer et al. (1985). At the time of writing, Lactococcus comprises five recognized species (Euzéby, 1997; Schleifer et al. 1986. Members of the genus Lactococcus have been identified as lactic acid bacteria that contribute significantly to the properties of fermented dairy products while others produce antimicrobial compounds. Members of the genus have been isolated largely from food-related sources and are generally regarded as safe (GRAS) organisms (Salminen et al., 1998). However, rare cases of invasive disease in humans, sometimes severe, have been reported in association with L. garvieae (Vinh et al., 2006;Wang et al., 2007; Yiu et al., 2007) and L. lactis (Mannion & Rothburn, 1990) infections. The case study by Wang et al. (2007) raised awareness of a potential risk factor for gastrointestinal disease from L. garvieae linked to the consumption of raw seafood (squid) in the summer months, although their 16S rRNA gene sequence analysis may not have been the best method of establishing an epidemiological link. The exact source of infection in squid and the farm of its origin could not be identified, and a much larger study is needed to confirm risk factors for potential gastrointestinal infection with L. garvieae. Several reports show that L. garvieae is an important pathogen of fish, squid and prawns, causing economic losses both in marine and in freshwater aquaculture (Carson et al., 1993;Chen et al., 2001Chen et al., , 2002Pereira et al., 2004; Vendrell et al., 2006). In addition, L. garvieae has been isolated from cases of bovine mastitis (Collins et al., 1983;Teixeira et al., 1996). Until now, however, there have been no reports ofThe GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain CAU 28 T is EF694028. for 3 days at 37 u C. Cellular fatty acid methyl esters were extracted by acid methanolysis (Minnikin et al., 1980) and analysed by using a Hewlett Packard ser...

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“…Although rare, human infection with L. lactis was first reported by Ledger et al (1974). It has since been reported as a cause of endocarditis (Mannion & Rothburn 1990, Clark & Burnie 1991, arthritis (Campbell et al 1993) and septicemia in an immunocompromised patient (Durand et al 1995). However, infection by L. lactis subsp.…”

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confidence: 99%

Lactococcus lactis subspecies lactis also causes white muscle disease in farmed giant freshwater prawns Macrobrachium rosenbergii

Wang

Lin²,

Liaw³

et al. 2008

Dis. Aquat. Org.

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From May to August 2001 in Taiwan, 27 farms for the giant freshwater prawn Macrobrachium rosenbergii experienced white tail disease outbreaks in animals approximately 3 to 5 mo old, with total lengths from 6 to 8 cm. Examination of the infected prawns revealed not only previously reported Lactococcus garvieae (16 farms) but also the novel L. lactis subsp. lactis (10 farms). One farm had shrimp infected with both bacteria. In the farms with L. lactis infections, the cumulative mortality was approximately 25 to 60%. Gross signs of disease were opaque and whitish muscles, while histopathology included marked edema and necrotic lesions, with inflammation in the muscles and hepatopancreas. Bacteria isolated using brain/heart infusion medium or tryptic soy agar were Gram-positive and ovoid. Eleven isolates from different farms were identified as L. lactis subsp. lactis using API 20 Strep and Rapid ID32 Strep tests and using PCR assays specific for the L. lactis subsp. lactis 16S rDNA gene (650 bp amplicon) and for the 16S to 23S rDNA interspacer region (380 bp amplicon). In addition, sequencing of the full 16S rDNA genes of 2 of the isolates (MR17 and MR26; GenBank Accession Numbers AF493058 and AF493057, respectively) revealed 99.9% identity between the isolates and 98.7% identity to several complete 16S rRNA sequences of L. lactis subsp. lactis at GenBank. Experimental infections with our isolates gave gross signs and histopathological changes similar to those seen in naturally infected prawns. The mean lethal dose of 4 isolates and the reference strain L. lactis subsp. lactis BCRC 10791 ranged from 4.2 × 10 6 to 2.5 × 10 7 colony-forming units prawn -1 , indicating virulence similar to that previously reported for L. garvieae. This is the first report confirming L. lactis subsp. lactis as a pathogen in juvenile and adult prawns from aquaculture.KEY WORDS: Lactococcus lactis subsp. lactis · Giant freshwater prawn · Macrobrachium rosenbergii · PCR · 16S rDNA sequencing · 16S to 23S rDNA interspacer regions gene Resale or republication not permitted without written consent of the publisherDis Aquat Org 79: [9][10][11][12][13][14][15][16][17] 2008 molymph and opaque or whitish muscles (Shu 1993, Chen et al. 2003, and a Lactococcus garvieae infection that occurs principally in the hot season (June to September, especially during phytoplankton blooms) and causes muscle necrosis (Cheng & Chen 1988a,b, Chen et al. 2001. Streptococcus lactis, recently reclassified as Lactococcus lactis, is not recognized as a common veterinary pathogen, but it has occasionally been reported in the etiology of cattle mastitis and in septic arthritis of the neonatal calf (Wichtel et al. 2003). L. lactis is considered to be a skin commensal, and cattle are natural hosts. Although rare, human infection with L. lactis was first reported by Ledger et al. (1974). It has since been reported as a cause of endocarditis (Mannion & Rothburn 1990, Clark & Burnie 1991, arthritis (Campbell et al. 1993) and septicemia in an immunocompromised ...

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Diagnosis of bacterial endocarditis caused by Streptococcus lactis and assisted by immunoblotting of serum antibodies

Cited by 55 publications

References 2 publications

Infective Endocarditis Complicated by Intracerebral Hemorrhage due to Lactococcus lactis subsp. cremoris

Infective Endocarditis Complicated by Intracerebral Hemorrhage due to Lactococcus lactis subsp. cremoris

Lactococcus chungangensis sp. nov., a lactic acid bacterium isolated from activated sludge foam

Lactococcus lactis subspecies lactis also causes white muscle disease in farmed giant freshwater prawns Macrobrachium rosenbergii

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